Life estimation apparatus for accumulator and life extension method for pressure accumulator
US11982644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Nov 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2695
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A life estimation apparatus for a pressure accumulator estimates the life of the pressure accumulator based on an AE signal for the pressure accumulator. The life estimation apparatus includes: an AE sensor that is provided at the pressure accumulator and detects the AE signal; and an estimation unit that sets a point of time at which the AE sensor detects a damage AE signal that is generated from the pressure accumulator because of damage of a material during use of the pressure accumulator, as a minimum initial flaw generation time point that is a point of time at which a minimum initial flaw of the pressure accumulator that is detected by a non-destructive inspection method is generated in shipping of the pressure accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.